baber/WOPTO huggingface dataset:
Patent GB-1192111-A (GB)
Title: Apparatus and Methods for Regenerating Etchants
IPC: C01G3/05
Filed: 1968-01-12
Abstract: 1,192,111. Etching. CHEMCUT CORP. 12 Jan., 1968 [13 Feb., 1967], No. 1948/68. Heading B6J. [Also in Division G3] A metal surface is etched with an etchant solution including a polyvalent halide of the metal being etched, the etchant solution being subjected to automatic halogenation in response to variation in a sensed property of the solution which, unless uniformly sustained during etching by halogenation, will cause non-uniform etch rate; automatic dilution in response to variation in a sensed property of the solution which unless uniformly sustained during etching by dilution causes non-uniform etch rate; and automatic withdrawal of solution from the etching zone in response to variation in volume of the etchant. Articles to be etched are conveyed by a driven horizontal roller table 16 6 between nozzles 12 and 14 of spray etcher 10 which contains a reservoir tank 20 of etchant e.g. aqueous ferric or cupric chloride (for etching iron and copper surfaces respectively). The specific gravity of the etchant is sensed by a hydrometer and water is introduced by line 18 to maintain the specific gravity at a constant predetermined level. Any rise in level of the etchant in tank 20 is sensed by float controlled switch 82 causing excess etchant to be transferred to tank 24. Cell 74 compares the colour of a sample of etchant withdrawn through lines 26 with a reference colour and air response actuates a chlorinator 32 to ensure that the etchant is maintained in its initial oxidation state. Hydrochloric acid may be added simultaneously with the chlorine.
Patent GB-1409041-A (GB)
Title: Electrograph recorder
IPC: B65H19/12
Filed: 1974-01-16
Abstract: 1409041 Recording device KIENZLE APPARATE GmbH 16 Jan 1974 [24 Jan 1973]  01961/74 Heading G1J An electrographic recorder for use with a tape cartridge comprises a pivotally mounted lid 2 at least a part of which is transparent to allow observation of the recordings, recording electrodes 21, 24, and means operable to fasten the lid in the closed position and at the same time to move the cartridge towards the electrodes into the recording position. The cartridge 12 comprises a feed spool 13, a take-up spool 14 and guides 16, 17 and 18 for the metal paper tape 15. The lid 2 has wall parts 8, 9 defining a pocket in which the cartridge is slideably received. When the lid is moved to the closed position, spring 26 acts first against the lid itself and then against the cartridge. With the lid in the closed position, a locking member 30 is moved downwardly by turning key 28. Member 30 engages a slot 49 in lid 2 to lock the lid in the closed position and at the same time a portion 34 of member 30 pushes cartridge 12 laterally so that a projection 20 locates in a slot 19 of the cartridge. Member 30 also has an arm 35 which, when member 30 moves downwardly, allows a drive bush 39 to engage drive slots 45 in the take-up sppol 14. Drive bush 39 is coupled to a drive-shaft 36 by means of a pin 37 engaging a slot 38. The device includes a fixed electrode 21, and writing electrodes 24 movable laterally by means of a comb 25. The lock 7 may be mounted on the lid 2, or may be replaced by a locking slide where security is not required.
Patent GB-100100-A (GB)
Title: Improvements in Cop or Pirn Winding Machines.
IPC: B65H54/14
Filed: 1916-02-10
Abstract: 100,100. Maschinenfabrik Schweiter Akt.-Ges. Feb. 25, 1915, [Convention date]. Winding-machines.-In a cop and pirn winding machine, the feeding-device carrying the feeler and the thread-guide is controlled on its guide-rod by a ball clamp. The feeler-disk i, Fig. 2, is mounted on ball bearings on a sleeve l on the guide-rod k. A cone m carrying balls v and an abutment u also slides on the rod. When the disk i is pressed in the direction of the arrow I by the growing cop, a second cone n connected to the disk at o is moved to release the balls v. A spring p keeps the two cones normally pressed together to lock the balls.
Patent GB-1489301-A (GB)
Title: Rectangular metal picture frames
IPC: G09F15/00
Filed: 1975-01-16
Abstract: 1489301 Picture frames M PIGET 16 Jan 1975 [17 Jan 1974] 1991/75 Heading A4X A rectangular metal picture frame comprises four elongate components 1 or 24 joined end to end, each defining an abutment surface 23 or 16 adapted to contact one face of the picture 7 or 21, and a trough locating a spring 6, a clip 4 and a retaining member 8 or 19 having a first portion 9 clamped to the respective component by the spring 6 through the clip 4 and a second portion 10 or 26 adapted to contact the other face of the picture, there being a gap between said second portion 10 or 26 and said abutment surface 23 or 16 which is adjustable to accommodate pictures of varying thicknesses. In Fig. 3, the second portion 10 is connected to the picture 7 by a screw 12 received in an elongate slot (11) in portion 10 to allow for expansion of the picture stretcher. In a modification, Fig. 17 (not shown) the picture can be slid out of the frame by removing one of the retaining members (30).
Patent GB-251018-A (GB)
Title: Improvements in or relating to optical systems for photographic and kinematographic cameras and projectors and the like
IPC: G02B1/00
Filed: 1925-01-22
Abstract: 251,018. Crow, A. B., and Dunn, E. M., (Executrix of Dunn, E. J.). Jan. 22, 1925. Addition to 228,207. Optical systems for cameras and projectors, utilizing achromatic prisms, for the production of a number of identical images, arranged radially round the principal axis, with the thin edges meeting, are provided with divisions arranged to prevent overlapping of the images, and to provide for the correct area of each prism in accordance with the time factors for suitable exposures. The prism-combination e, e<1> is disposed near to the objective a, b, which is, together with the prism combination, divided into quadrants by partitions p<l> - - p<4>. These partitions may be extended throughout the camera. Alternatively, the divisions may be spaced at unequal angles, Fig. 4, but the prisms cut so that the images p are equally spaced. In a modification the effective areas of the prisms may be modified by the insertion of opaque wedge-shaped stops e - - b, Fig. 2, so that the areas are proportional to the exposures required for the various colour filters used, such filters being placed between the prisms and the focal plane of the lens. In one construction, the divisions do not pass through the elements of the lens, but are fitted with narrow flanges covering a portion of the lens to prevent overlapping of the images. Focussing may be effected by a supplementary lens movable along the axis of the objective, or by altering the distance between the elements of the objective.
Patent GB-304724-A (GB)
Title: Improvements in or relating to thermally responsive electric switches
IPC: H01H37/54
Filed: 1929-01-21
Abstract: 304,724. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Jackson, R. P.). Jan. 25, 1928, [Convention date]. Thermostats.-Upon change of temperature, a bimetallic element 6 bends and acts through a spring 14 and rod 11 on a curved diaphragm 1 which, when the spring 14 has been sufficiently strained or relaxed, buckles or unbuckles suddenly so producing a quick closing or opening of contacts 12, 17. The bimetallic element 6 may take the form of a disc or of a star or cross with a number of arms extending outwards from a centre It is clamped to the diaphragm 1 at its edge. The tension of the spring 14 may be adjusted by a nut 15 and locking nut 16.
Patent GB-395043-A (GB)
Title: Improvements relating to carriers for use with boxes, cartons, outer casings or covers for transporting articles of merchandise
IPC: B65D85/42
Filed: 1932-01-22
Abstract: 395,043. Cartons &c. MENTEN, P., 27, Rua Miguel Menten, Sao Paulo, Brazil. Jan. 22, 1932, No. 2010. [Class 18.] A collapsable carrier for one or more electric light bulbs &c. intended for insertion in an independent carton, casing, or cover, comprises a collapsable box-shaped holder 6, Fig. 1, at each end or side of a cardboard or like base 1 with aligned orifices 7 in the facing sides of the holders for receiving the bulb &c. and a pair of flanges 5 running from holder to holder along the base to stiffen it, such flanges being entirely independent of the casing or cover 8 used to enclose the carrier. In a modification, Fig. 3, an apertured central rib 13 mounted on the base 1a between the holders 6a provides an additional intermediate support for the bulbs &c. and the rib may be formed from a folded sheet mounted on a sub-base 10 having folded end portions 16 bearing against the holders 6a.
Patent GB-1278762-A (GB)
Title: Magnetically-operable device
Inventor: KIRK COLIN JOHN
IPC: F16K31/08
Filed: 1970-01-15
Abstract: 1278762 Valves MARTONAIR Ltd 11 Dec 1970 [15 Jan 1970] 2013/70 Heading F2V [Also in Divisions E2, F1, G1 and H1] A magnetically operated valve (Fig. 1) comprises a non-magnetic body 1 divided by non- magnetic wall 4 into coaxial chambers 2, 3 of which 2 has insert 5 defining a further chamber 6 with passages 7, 8 joining 2 and 6 and venting 6 to the outside. A movable magnetic element 9 biased by spring 10 on seat 11 normally closes passage 7. Wall 4 is apertured to receive annular magnetic insert 13 surrounding cylindrical magnetic core insert 14 separated by non- magnetic ring 15. Magnetic member 16 is movable axially in chamber 3 by push-rod 17 against biasing spring 19, and is face grooved at 22 to register with ring 15. When the face of member 16 adjoins inserts 13, 14 they are  oppositely magnetized to lift element 9 off seat 11 against spring 10 to open passage 7 to passage 8, and retraction of member 16 demagnetizes 9, 13, 14 to allow closure of the channel. Element 9 may be biased in the opposite direction for repulsion against the bias to close a normally open channel. Element 9 and inserts 13, 14 may be a magnetically soft alloy of Fe, Cu, Ni, and the movable member 16 may be of magnetically hard alloy of Fe, A1, Ni and Co. Alternatively it may be of soft material electrically magnetized. Two such valves may be incorporated at opposed ends of a cylinder containing a limited travel piston (Fig. 2, not shown) displaceable in either sense by a pressure medium. A cistern (Fig. 3) provided with a liquid outlet 31 and shut-off valve 33, and a gas inlet 33 at its upper end has a float 34 on pivoted arm 35 operating the movable member 16; inserts 13, 14 being carried in the non-magnetic cistern wall. An external movable magnetic element operates the gas inlet valve (not shown) in accordance with liquid level.
Patent GB-1357001-A (GB)
Title: Fertilizers
IPC: C05F11/02
Filed: 1971-01-15
Abstract: 1357001 Sphagnum peat fertilizer FISONS Ltd 23 Dec 1971 [15 Jan 1971] 2042/71 Heading C1B [Also in Division C5] Fertilizer comprises ground and agglomerated sphagnum peat of particle size 0À5-4 mm. and 40-96% by wt. potassium and/or ammonium salts of phosphoric, sulphuric and/or nitric acids, urea, potassium chloride, urea/aldehyde condensation products, bone meal, copper and iron sulphate, sodium tetraborate, magnesium sulphate potassium molybdate. Also pigments, carbonates, vermiculite, perlite or talc, fungicides and pesticides may also be included.
Patent GB-1593902-A (GB)
Title: Stabilisation of polymers
IPC: C08K5/22
Filed: 1978-01-18
Abstract: A stabiliser combination comprising a deactivator and an oxidation inhibitor for polymers in contact with copper is described. A stabiliser combination of this type contains unsubstituted N,N'-bis-salicyloylhydrazine as deactivator and oligomeric 2,2,4-trimethyl-1,2-dihydroquinoline as oxidation inhibitor. This stabiliser combination is particularly suitable for polymers used as cable and wire insulation in high-voltage and communications technology. <IMAGE>
Patent GB-877289-A (GB)
Title: Improvements in or relating to the manufacture of cellular polymeric materials
Inventor: GEE ERIC
IPC: C08G18/64
Filed: 1958-01-22
Abstract: A solution of a polymer containing groups reactive with an isocyanate is incorporated in at least one of the following: hydroxylended polyether, polyisocyanate, water and a basic catalyst, and acts as a stabilizer for cellular polyurethanes. Specified stabilizers are alkylated and acylated celluloses, whilst solvents are acetone, methylene chloride and di-octyl phthalate.  The polyethers may be prepared as in Specification 733,624 and can have less than 5% molar of glycidol, glycerol, trimethylol propane or 3-hydroxymethyloxa-cyclobutanes copolymerized therewith.  Lists of polyethers, polyisocyanates and catalysts are given.  Polysiloxanes which control the structure, and cross-linking agents can also be present.  Specification 850,664 also is referred to.ALSO:A solution of a polymer containing groups reactive with an isocyanate is incorporated in at least one of the following :- hydroxyl ended polyether, polyisocyanate, water and a basic catalyst-and acts as a stabilizer for cellular polyurethanes. Specified stabilizers are alkylated and acylated celluloses, whilst solvents are acetone, methyline chloride and dioctyl phthalate.  The polyethers may be prepared as in Specification 733,624 and can have less than 5% molar of glycidol, glycerol, trimethylol propane or 3 hydroxymethyloxocyclobutanes copolymerized therewith.  Lists of polyethers polyisocyanates and catalysts are given.  Polysiloxanes which control the structure, and crosslinking agents can also be present.  Specification 850,664 also is referred to.
Patent GB-192592-A (GB)
Title: Improvements in and relating to thermionic valves for wireless telegraphy and telephony
IPC: H01J19/38
Filed: 1922-01-24
Abstract: 192,592. Preston, L. G., Hodgson, B., and Hughes, H. G. Jan. 24, 1922. Electric fittings. - A grid is secured to ,a support A by placing the grid wire or wires B in one or more slots D in the support, the edges E of the slots being burred over the wire by a blow from a tool. In a modification, the slot is inclined, and one edge only is burred over. In another arrangement, the grid wire is threaded through holes in a support, and the support is indented to clamp the wire.
Patent GB-597406-A (GB)
Title: A method of treating bodies of wound stranded material, such as bobbins or the like
IPC: D06B5/00
Filed: 1945-01-29
Abstract: <PICT:0597406/IV/1> Bodies formed of wound stranded materials are treated to prevent inadvertent unwinding by placing them in loose arrangement in basket means of openwork material, immersing the latter in treating fluid having slight adhesive properties when set or hardened, removing the basket means from the fluid and rotating it to dispense surplus fluid by centrifugal force.  The strand bodies, such as bobbins 30, are placed in a basket consisting of perforated cylindrical walls 16 supported on the spindle 14 by means of a bar 20 of triangular section, to which the perforated bottom plates 25 are hinged by pins 23.  The bottom plates have clips 27 engaging projections 28 on the side walls.  The basket is then immersed in molten wax 11, contained in a vat 10 and heated by a heater 12.  It is next raised above the level of the fluid, rotated rapidly to remove excess, and then raised above the top of the vat, a tray being placed underneath and the treated bobbins discharged by releasing the catches 27.  Alternatively, positive mechanical means may be used for opening and closing the bottom plates.  U.S.A. Specifications 2,200,720 and 2,200,721 are referred to.
Patent GB-524130-A (GB)
Title: An electrical detonation indicator for internal combustion engines
IPC: G01H3/00
Filed: 1939-01-23
Abstract: 524,130. Electric signalling systems. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Jan. 23, 1939, No. 2305. Convention date, Feb 2, 1938. [Class 40 (i)] [Also in Group XXVII] Detonation vibrations in an internal combustion engine are detected by a pick-up converting the vibrations into electrical variations which are passed through a filter to remove frequencies outside the usual range of detonation frequencies, amplified and shown on an indicator, the pick-up being connected only during that portion of the cycle in which detonation occurs, to avoid operation by valve vibration &c. The connection of the pick-up may be effected by a contact on the crankshaft or by a relay operated by ignition current, the pick-up being disconnected by a sluggish relay or by ignition current in another cylinder. Differentiation between detonations and other vibrations may be made by using pressure or temperature differences for connecting up the pick-up, or the amplifier may be non-linear so that it is unresponsive to small amplitudes.
Patent GB-704464-A (GB)
Title: An improved plug and socket connector for multiple electric wiring systems
Inventor: WEBB CHARLES DUNCAN HENRY
IPC: H01R13/621
Filed: 1951-01-30
Abstract: 704,464. Two-part couplings. PLESSEY CO., Ltd. April 30, 1952 [Jan. 30, 1951], No. 2315/51. Class 38 (1) A coupling comprises a number of combined pin and socket contact members 1 mounted in a unit comprising insulating discs 2, a rubber gasket 3, and a surrounding metal shell 7. The contacts 1 co-operate with double-ended socket contacts 4 mounted in a similar unit comprising discs 5, gasket 6, and shell 7<SP>1</SP>. The shell 7 is removably mounted in an outer shell 11, keys 14 on the shell 7 co-operating with splines 13 in the shell 11, and is held against a rubber sealing ring 15 by a threaded locking ring 18. The shell 7<SP>1</SP> is similarly held against a sealing ring 25 in an outer shell 19 by a threaded locking ring 18a. Correct connection between the contacts 1, 4 is ensured by a tongue on the shell 7 co-operating with a recess in the shell 7<SP>1</SP> when the shell 19 is coupled to the shell 11 by rotating a threaded collar 26, a further seal being formed by a ring 32. The locking rings 18, 18a, also retain rubber blocks 16, 23 respectively, which support ferruleended conductors 17, 24, for engagement with the contacts 1, 4. A ring 28 screwed on to the shell 19 retains a cable outlet member 29 and a gasket 31, a ring 28<SP>1</SP> on the shell 11 similarly retaining a gasket 30.
Patent GB-158259-A (GB)
Title: Tube welding machine
IPC: B23K28/00
Filed: 1921-01-17
Abstract: 158,259. Priborsky, J. June 10, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Welding; rolling annular bodies; skew-rolling.-In a machine for welding tubes end to end, the tubes 6 are heated in a furnace 7 and are then passed over a coaxial roll 1 and are welded by a skew roll 2, the rolls 1 and 2 being rotated in opposite directions. The roll 2 is mounted on a jointed shaft and is moved vertically by a lever 13 operated by a pedal 3. An adjustable stop 4 engages the end of the tube so as to place the beginning of the joint between the rolls. When the pedal is operated to raise the roll 2, the stop 4 is at the same time raised out of action by levers 5 and a slidable rod 14.
Patent GB-886772-A (GB)
Title: New or improved loader for magnetic recorder-reader apparatus
Filed: 1960-01-22
Abstract: 886,772. Magnetic record apparatus. ETABLISSEMENT MINIVOX. Jan. 22, 1960 [Feb. 12, 1959], No. 2352/60. Class 40 (2). A cassette 1, 2 for a magnetic record apparatus, includes a pair of reels 6 and a single rotary knob B controlling cam means 3, 9 which in one position releases the cassette from the apparatus, locks the record tape or wire F against longitudinal movement and disengages said tape or wire from the magnetic head 14 to permit withdrawal of said head, and in the other position secures the cassette to the apparatus and releases the tape or wire on to the head free for longitudinal movement. The cam means comprises an elliptical cam 3 and an elliptical sheet member 9 displaced 90 degrees in respect of cam 3. In the locked position, Figs. 1 and 2, the member 9 engages a slot in a protruding part 13 of the main body of the apparatus and thereby retains the cassette thereon. When knob B is rotated 90 degrees, cam 3 moves a member 4, linked to it by an endless tension spring 12, to the position shown in Fig. 4 to lift the tape or wire F from the head 14 and clamp said tape or wire against the side of the cassette. In this position of member 4, the end 7 of a leaf spring 5 drops into an aperture 4D, Fig. 7, of member 4 so that member 4 is retained in the tape clamping position, irrespective of subsequent movement of knob B until the cassette is replaced in position on the apparatus. In this position of member 4 the cassette may be removed or replaced with the tape or wire clear of the head 14 which remains as part of the main body of the apparatus. The rotation of cam 3 also deforms a flat-sectioned spring 11 so that its ends press the spools 6 against lugs 19 to retain the spools in the cassette when cassette and spools are withdrawn from the conical ends of shafts 18. When the cassette is replaced on the apparatus, the head 14 engages a lug 17 on the spring 5 and flexes the latter upwardly so that member 4 is free to return under the tension of spring 12 when knob B is rotated to the locking position and the tape or wire is then lowered on to the head 14. Driving engagement between drive shaft and spools 6 is effected by means of a magnet 16 and discs of magnetic material 15.
Patent GB-1139391-A (GB)
Title: Power driven type bar actuating mechanism
IPC: B41J23/12
Filed: 1967-01-17
Abstract: 1,139,391. Typewriters. FRIDEN Inc. 17 Jan., 1967 [31 May, 1966], No. 2357/67. Heading B6F. Type - bar machines; power assisted type actions; key lever actions.-A power operated typewriter is provided with a continuously rotating drive roller 21 which on depression of a key lever 27 co-operates with a cam 31 of a cam bell crank 263 to rock a type bar actuating bell crank assembly 34 and impel the type bar 36 against the platen (not shown), whereby the bell crank assembly includes a drive bell crank 34b having an arm 714 which engages a type bar actuating bell crank 34a to impart a rocking movement to the latter which towards the end of its rocking movement moves independently of the bell crank 34b, so that the latter may be restored before the type bar 36 comes to rest again on the type bar rest 52. Permutation type selecting mechanisms; electric signal input arrangements.-The typewriter keyboard may be operated automatically in response to coded signals transmitted to a translator 14 provided with electromagnetically actuated permutation slide bars (not shown) which actuate a selected one of hooked levers 490 individual to the key levers 27 to engage a pin 491 to depress the associated key lever. Perforating machines; combination selecting means; closing electrical switches.-Depression of a key 27 and associated rocking of the respective cam bell crank 263 results in the displacement of a slide 261 or 262 which rocks a predetermined number of bails B-CD to close a set of electric switches (not shown) which actuate a perforator (not shown). Actions, adjustable impact.-The impact of type bars 36 is adjustable by mounting links 33 in a respective one of three holes in the drive crank bell 34b and also by a turnbucklo 43, 44 which adjusts the setting of the cams relative to the drive roller 21. Clash preventing.-The type bars 36 are operated through toggle levers 45, 46 which when the type bars are returned to their rest position are in a straight line to restrain the type bars against rebound. Linear disposition of toggle levers is adjusted by setting of the tongues 51 on the toggle lever 45.  Keyboard lock.-A bail 29 is rocked into the path of key levers 27 to prevent their depression when the power is off.